How to retrieve enumeration values from a multi-select field

Hi Ralph

Many thanks for suggesting the solution.

I tried the 1st Option as we have the version 3, however when it reaches this if condition, the value(workItem.getValue(iAttribute)) seems to be of instance String and not an identifier and does not go inside the if body.

if (value instanceof Identifier) {
    Identifier literalID = (Identifier) value;
    ILiteral literal = getLiteralbyID(literalID, iAttribute);
    String displayValue = literal.getName();
}

I have tried the version that you mentioned for in case of string. But however using just the below:

ILiteral literal= (ILiteral)iAttribute.getValue(auditableCommon,workItem,null);
String result = literal.getName();

displays only the literal name which is "access_level_rqm.literal.l2" and not the actual value.

Appreciate your help.

As Sam and I were saying:

• you get a string, the string contains the literal(s) as a string.
  
• The Literal string representations are seperated by ;
• You can split them with myValueString.split(";").
  
• That with some trim should get you the string representation of the literal.
•  To get the literal you will have to look into the blog post I mentioned and iterate over the literals of the enumeration.
  
• You compare the string you got from the split to the string representation of the literal
• If you find one with the same string representation as the literal you are looking at, you have the ILiteral.
  
• From that you can get the other data.
  

Hi Ralph & Sam

Thanks a lot for the explanation.

 I have already tried the above option of getting the string out and comparing it with the literals from enumeration. The issue is that since attribute is not an instance of enumeration(its a multi select list implemented as string using enumeratoin presentation version 3) it fails at the creation of the enumeration object.IEnumeration<? extends ILiteral> enumeration = workItemServer.resolveEnumeration(ia,null);
the above throws assertion error, also tried the version I mentioned the very first which is getting the enumerationmanager and calling internalresolve().EnumerationManager enumerationManager = new EnumerationManager(workItemServer.getAuditableCommon());enumerationManager.internalResolve(workItem.getProjectArea(), ia.getAttributeType(), monitor);This is the case of a version 3. Is there a way to get the IEnumeration object created ? Or is it some other way that we need to get the the value corressponding to a literal other than using the enumeration object?ILiteral literal= (ILiteral)iAttribute.getValue(auditableCommon,workItem,null);
String result = literal.getName();

I see the problem. The knowledge about the enumeration in use is in the presentation, so you have to put some knowledge in your extension to find it. Since Sam seems to have done that already, I leave it to him to answer.

Getting the enumeration objacte as below

.IEnumeration<? extends ILiteral> enumeration = workItemServer.resolveEnumeration(ia,null);

throws assertion error, also tried the version I mentioned the very first which is getting the enumerationmanager and calling internalresolve().EnumerationManager enumerationManager = new EnumerationManager(workItemServer.getAuditableCommon());enumerationManager.internalResolve(workItem.getProjectArea(), ia.getAttributeType(), monitor)

This is the case of a version 3.

Is there a way to get the IEnumeration object created ?

This shows what worked for me in 3.x-4.x so far: http://rsjazz.wordpress.com/2012/08/20/manipulationg-work-item-enumeration-values/

I will have to update my sample to handle the string version of the enum